Hospital corpsmen were previously trained at Naval Hospital Corps School, Great Lakes, Illinois until the 2011 Base Realignment and Closure Bill caused Hospital Corps School to be relocated to the Medical Education and Training Campus (METC) at Joint Base San Antonio, Texas.
characteristic of highness or lowness of a sound is called The frequency of a sound wave determines the pitch of the sound you hear. Remember that frequency is the number of waves passing a fixed point in a given period of time. A high-frequency wave with short wave-lengths, such as that produced by a tiny flute, makes a high-pitched sound.
Pitch describes the degree of highness or lowness of a vocal tone. For example, when a person is excited or nervous their pitch may become higher. If a person is trying to control emotion or expressing something serious or confidential they might use a low pitched voice. Practise using a range of notes in your voice so that your voice is flexible and expressive. A voice that is all on one note is in monotone and unless this is a character decision, it can be very boring to listen to.